I played the last days with the SIT in a MUfollower constellation.....

It was very interesting to play with the output node......
Output at the drain of SIT, between the resistors, at the source of the upper Semisouth...

Most bass for my Tone Tubbies came from the last possibility, overall clearest sound from the first possibility....
The MU allows to adapt the sound more to the chain or to the speakers.

But, I repeat ....... Overall clearest sound is still the thick film resistor solution......(I did not try bulbs)
Maybe the wattage or grip for my Tone Tubbies is a bit weak....there the MU gives more power.

__________________and the First Wtt is......a really First Class PSSIdea

That's my sense of this audio stuff, generg. What actually really distorts the musical signal is everything that electrically codifies and processes that signal. The less of that stuff in play, the obviously empirically the better. I mean, you don't cascade five transformers into the middle of your design only because you can. And where an alternative between passive and active exists, the passive probably got the edge.

But, I repeat ....... Overall clearest sound is still the thick film resistor solution......(I did not try bulbs)
Maybe the wattage or grip for my Tone Tubbies is a bit weak....there the MU gives more power.

Is these the kind you used: Vishay Power Thick Film 2 Ohm Resistors(25watt)